APA Style

Unterricht 90. (1990). Zunch: ETH-HONGGERBERG.

Chicago Style

Unterricht 90. . Zunch: ETH-HONGGERBERG, 1990. .

MLA Style

Unterricht 90. . Zunch: ETH-HONGGERBERG, 1990. .

Turabian Style

Unterricht 90. Zunch: ETH-HONGGERBERG, 1990. .